2014/05/31 by Sandeep Chatterjee, Bedangadas Mohanty, B. Mohanty
Physics and Astronomy · #Coalescence (physics) #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Lambda #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Thermal #Thermodynamics #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevc.90.034908
published as Phys. Rev. C 90, 034908 (2014)
arxiv created 2014/07/10 · openalex publication_date 2014/09/16 · arxiv updated 2014/11/07 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We discuss the production of light nuclei in heavy ion collisions within a multiple freezeout scenario. Thermal parameters extracted from the fits to the observed hadron yields are used to predict the multiplicities of light nuclei. Ratios of strange to nonstrange nuclei are found to be most sensitive to the details of the chemical freezeout. The well-known disagreement between data of _\ensuremathΛ3H/3He and _\ensuremathΛ3H/3He at √sNN=200 GeV and models based on thermal as well as simple coalescence using a single chemical freezeout surface goes away when we let the strange and nonstrange hadrons freeze out at separate surfaces. At the CERN Large Hadron Collider energy of √sNN=2700 GeV, multiple freezeout scenario within a thermal model provides a consistent framework to describe the yields of all measured hadrons and nuclei.